Bolthole Index

Iron County, Utah

Building permits, zoning and land rules in Iron County, Utah

52Index Score / 100
#12 of 29 in Utah

Unincorporated Iron County, Utah requires building permits for structural, electrical, plumbing and mechanical work; a small accessory structure is exempt only within the county's size and utility limits.1 Iron County zones unincorporated land, while incorporated cities administer their own zoning.23 Septic permits come from the Southwest Utah Public Health Department.4

At a glance

Building permit
Required for structural, electrical, plumbing or mechanical work; the narrow accessory-building exception ends above 200 square feet1
Zoning
Iron County zoning covers unincorporated land; cities administer zoning inside their boundaries23
Septic
A permit and approved design are required through Southwest Utah Public Health Department45
RV living
Temporary use is limited to 1–16 days per 30-day period; qualifying seasonal use of 17–180 days requires a building permit and other conditions67
Tiny home
Tiny homes on wheels and park models are listed only for placement in a travel trailer park89
Owner-builder
Available with conditions; the form does not remove permit or inspection requirements10
Private well
A valid water right and State Engineer permission are required before regulated well construction11
Driveway access
The first public-road access for a new home is approved with its building permit; additional access needs an encroachment permit12

Who to call

Building permits

Iron County Building Department

Building permits, payments and inspection scheduling for work administered by Iron County

435-865-5350

[email protected]

82 N 100 E #102, Cedar City, Utah 84720

Online permits →

Zoning

Iron County Planning Department

Zoning, subdivisions, special land use permits and Planning Commission matters

435-865-5386

[email protected]

68 S 100 E, Parowan, Utah 84761

Septic permits

Southwest Utah Public Health Department Environmental Health

Onsite wastewater plan review, permits, inspections and records for Iron County

Roads & driveways

Iron County Engineering Department

Public-road and county-right-of-way driveway or culvert access and encroachment permits

435-865-5370

82 N 100 E #104, Cedar City, Utah 84720

Online permits →

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in Iron County, Utah?

Yes. Iron County requires a building permit for structural, electrical, plumbing or mechanical work that the county administers, including new construction, additions, remodels and utility upgrades.1 An accessory structure no larger than 200 square feet can avoid a building permit only when it has no electrical, plumbing or mechanical work; anything larger requires a permit.1 Incorporated municipalities may require different signoffs, so confirm jurisdiction before applying.1

A qualifying agricultural structure used solely for agriculture and not for human occupancy can be exempt from the State Construction Code, but plumbing, electrical or mechanical permits may still be required.13 The agricultural exception has parcel-location and acreage conditions inside cities and county-approved subdivisions.13 Iron County issues a final certificate of occupancy only after required construction and grading work is complete and the listed compliance documents and applicable city signoff are in place.14

Who issues Iron County building permits, and how do you reach them?

The Iron County Building Department issues county building permits and can be reached at 435-865-5350 or [email protected] at 82 N 100 E #102, Cedar City, Utah 84720.15 Applications, online payment and inspection scheduling are available through the county's building permit portal.1516 An inspection request needs the permit holder's name, permit number and project address.16

Iron County publishes a fee schedule, but the permit FAQ does not state one flat project price.17 Plan-review fees are nonrefundable, building-permit fees are not refunded after 180 days, and a project with no required inspection completed within 1 year must be renewed under the fee schedule.17 Zoning questions go to the separate Iron County Planning Department at 435-865-5386.18

Does Iron County have zoning?

Yes. Iron County maintains a zoning ordinance and zoning map for unincorporated land, and parcel-specific district rules determine permitted uses.3 Incorporated cities administer their own zoning inside city boundaries, so a Cedar City or Parowan address does not automatically mean the county is the land-use authority.2

The Iron County Planning Department handles zoning, subdivisions and special land use permits.18 Manufactured homes that retain their chassis must use a permanent foundation, meet HUD standards, be at least 12 feet wide and exceed 500 square feet; the county lists them in residential and agricultural zones and R4K.19 Pre-1976 mobile homes may be placed only in existing mobile-home parks in Beryl.20 Accessory dwelling units are permitted in the listed agricultural and residential districts but prohibited in R4K, commercial and industrial districts.21 Iron County has no confirmed single minimum dwelling size across every unincorporated district, so give Planning the parcel number and proposed dwelling type before committing to a design.2218

How do septic permits work in Iron County?

Southwest Utah Public Health Department is the local authority for onsite wastewater permitting, plan review, inspections and records in Iron County.4 A permit and approved design are required before a septic system is installed, replaced or modified, and soil and percolation testing must be completed by a Utah-certified onsite professional before design or installation.5 Iron County applications also require Utah Division of Wildlife Resources documentation clearing the property for prairie-dog habitation.5

Every installed septic system must receive a final inspection before backfilling, scheduled through Environmental Health.23 Only 17% of Iron County soils are rated without severe limitations for a conventional drain field, so treat septic feasibility as a pre-purchase question rather than assuming a standard gravity system will work.24 Utah requires wastewater to go to either a public sewer or a permitted onsite system; a septic system is a lawful off-grid sanitation route, not a permit-free one.2526

Can you live in an RV or tiny home on land in Iron County?

Iron County allows temporary RV camping on a legal lot of record in listed unincorporated agricultural and residential districts for 1–16 days in any 30-day period.627 The RV needs self-contained bathroom facilities or a portable chemical toilet, garbage must be removed, campfires require an approved fire ring, and camping must stay at least 100 feet from a stream or open water body.27 After 16 days, the camp must leave the property.6

Seasonal RV use for 17–180 days is limited to qualifying legal lots with restricted seasonal access and requires a valid building permit, approved site plan, sewage arrangements, approved culinary water and residential solid-waste service.7 A water-hauling proposal also requires a recorded restrictive covenant, and the camp must leave after 180 days.7 Iron County lists tiny homes on wheels and park models only in travel trailer parks, not as year-round dwellings on ordinary private lots.89 Ask Planning to confirm that the parcel's district is among those covered before moving an RV or tiny home onto the land.186

Building a home in Iron County: the steps, in order

  1. Confirm whether the parcel is unincorporated, then ask Iron County Planning for the zoning district, allowed dwelling type, setbacks and required land-use approvals.218
  2. Verify legal water. A private well requires a valid water right and State Engineer permission before regulated construction, followed by work from the appropriately licensed well professional.11
  3. Complete septic soil and percolation testing, obtain prairie-dog clearance documentation, and secure the health department's approved design and permit.5
  4. Resolve access. The first public-road or county-right-of-way access for a new home is approved with the building permit; additional access needs an encroachment permit.12 A connection to a state highway requires UDOT's conditional access permit.28
  5. Submit the building-permit application and plans, then schedule required inspections through the portal.116
  6. Arrange the septic final inspection before backfilling and complete all building closeout items before occupancy.2314

What should you check before buying land in Iron County?

Start with zoning, legal access, water rights and septic feasibility because each can change whether a rural parcel supports the intended home. Iron County's Planning Department can identify the unincorporated zoning district and applicable land-use rules.183 The Engineering Department handles access from public roads and county rights-of-way, while UDOT controls connections to state highways.1228

Water deserves an early paper check: Iron County averages about 14.5 inches of precipitation annually, and severe drought occurs in about 22% of years.2930 A domestic well still requires a valid water right and State Engineer authorization before construction.11 Septic suitability can be difficult because only 17% of county soils avoid a severe conventional-drain-field limitation.24 Floodplain development requirements could not be confirmed from an accessible official passage, so ask Iron County Engineering about mapped flood hazards and any required review before closing. The county's effective property-tax rate is about 0.4%, with a median annual bill near $1,444.3132

Watch-outs

  • Do not backfill an Iron County septic system until Southwest Utah Public Health Department completes the required final inspection.23
  • Iron County septic applications require prairie-dog-habitation development clearance documentation from the Utah Division of Wildlife Resources.5
  • Owner-builder status does not erase building permits: the form must be submitted to the Building Department, and the exemption has ownership, use and construction-frequency conditions.10
  • Seasonal RV use in unincorporated Iron County is not year-round occupancy: qualifying use ends after 180 days and carries permit, access, sewage, water, waste-service and setback conditions.7
  • Iron County's general minimum dwelling size and floodplain development requirements remain unconfirmed; ask Planning about dwelling standards and Engineering about flood hazards before purchase.2218

Sources

  1. Frequently Asked Questions, quoted and re-checked
  2. Business License, quoted and re-checked
  3. Frequently Asked Questions, quoted and re-checked
  4. Septic Systems, quoted and re-checked
  5. Septic Systems, quoted and re-checked
  6. Iron County Commission Meeting Minutes, February 8, 2021, quoted and re-checked
  7. Iron County Commission Meeting Minutes, Ordinance 2021-1 seasonal-use provisions, quoted and re-checked
  8. Iron County Code, Section 17.16.035—Table of Residential Dwelling Type, quoted and re-checked
  9. Iron County Code, Section 17.16.035—Table of Residential Dwelling Type, quoted and re-checked
  10. Building Permit Packet and Owner/Builder Certification, quoted and re-checked
  11. Water Well Drilling Information, quoted and re-checked
  12. Engineering Frequently Asked Questions, quoted and re-checked
  13. Utah Code, Section 15A-1-204 - Adoption of State Construction Code; Exemptions, quoted and re-checked
  14. Building Inspection Requirements, quoted and re-checked
  15. Iron County Building Department (ironcountyut.gov)
  16. Frequently Asked Questions, quoted and re-checked
  17. Frequently Asked Questions, quoted and re-checked
  18. Iron County Planning Department (ironcountyut.gov)
  19. Iron County Code, Section 17.16.035—Table of Residential Dwelling Type, quoted and re-checked
  20. Iron County Code, Section 17.16.035—Table of Residential Dwelling Type, quoted and re-checked
  21. Iron County Code, Chapter 17.16—Establishment of Zoning Districts, quoted and re-checked
  22. Planning (2026 county census)
  23. Septic Systems, quoted and re-checked
  24. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  25. Septic Systems, quoted and re-checked
  26. Septic Systems, quoted and re-checked
  27. Iron County Commission Meeting Minutes, February 8, 2021, quoted and re-checked
  28. Conditional Access Permit (Utah statewide rule), quoted and re-checked
  29. Annual precipitation: Bolthole Index county data
  30. Share of years in severe drought: Bolthole Index county data
  31. Effective property tax rate: Bolthole Index county data
  32. Median property tax bill: Bolthole Index county data

Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

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County locator

Iron County in Utah

52
County map
Iron County highlighted among the Utah counties · colored by Index score

How Iron County scores

Seclusion85100% ev.
Self-Sufficiency2699% ev.
Admin Boringness40100% ev.
Durability42100% ev.
Property Autonomy60100% ev.
Carry Cost78100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$414kTypical home
0.4%Property tax
$3,525Land / acre
14.5"Annual rain
22% of yrsSevere drought
5.9 / yr (+5.5)Mid-century 100°F days
35.2 daysMid-century dry spell
0.88" (+5.4%)Mid-century 1-day rain
1.15×Wildfire change factor
100%Forward climate coverage
$962Home insurance / yr
3% / yrInsurance growth
1.22%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
116,567People within 2 hr
3,010Radius comparison (15 mi)
19.5People / sq mi
57.7%Federal land
52.2%Land at 15% slope or less
17%Septic soil without severe limits
239,367 acWorkable land screen
34.5%Wooded land
17.6 tonsBiomass / forest ac
49.4°FAvg temp

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Answers from the rulebook for Iron County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Iron County rules

  • Building permitRequired

    Structural, electrical, plumbing, or mechanical work in Iron County, including new residential and commercial construction, additions, remodels, accessory structures, and utility upgrades administered by Iron County.

    • A maximum of 200 square feet of accessory structure without electrical, plumbing, or mechanical work may be constructed without a building permit; any square footage over 200 requires a building permit.
    • Requirements and signoffs may differ within incorporated municipalities.

    accessory structure permit threshold: <= 200 square feet (No electrical, plumbing, or mechanical work in the structure.)

    “A building permit is required for any structural, electrical, plumbing or mechanical work that is done.”
  • Owner-builder exemptionConditional

    Owner-builders seeking necessary building permits for new residential construction or residential remodels/additions in Iron County.

    • For new residential construction, the owner must be the sole owner of the property and construction project.
    • For new residential construction, the project must be the only residential structure the owner has built that year, and the owner must not have built more than three residential structures in the past five years.
    • The improvements must be for personal, non-commercial, non-public use.
    • Work must be performed by the sole owner, a licensed contractor, covered employees, or persons under the owner's supervision receiving no compensation or only token compensation.
    • Using an unlicensed contractor or improperly compensating an unlicensed person may result in a Class A misdemeanor and an administrative fine of up to $2,000 per day.
    • The form must be submitted to the Building Department to obtain necessary building permits.

    prior residential structures built: <= 3 structures in five years (For new residential construction.) · residential structures built in current year: 1 structure (The project must be the only residential structure built by the owner that year.) · maximum administrative fine: <= 2000 USD per day (For violations of the Utah Construction Trades Licensing Act.)

    “For New Residential Construction Only. I am the sole owner of the property and construction project at the above described location; the project described is the only residential structure I have built this year; I have not built more than three residential structures in the past five years.”
  • Building code adoptedAdopted (with conditions)

    Construction in unincorporated Iron County under the Iron County Design Standards.

    • The adopted codes are subject to amendments adopted by the State of Utah.
    • Future editions take effect when published, adopted by the State of Utah, and filed with the County Recorder without further county adoption.
    • The codes are enforced by the Iron County Building Official.
    • If Iron County Land Management Code requirements conflict with the listed International Building Code requirements, the International Building Code requirements prevail.
    • Violations may result in a misdemeanor punishable by a fine not exceeding $299 per violation, imprisonment not exceeding 90 days, or both.

    maximum fine per violation: <= 299 USD · maximum imprisonment per violation: <= 90 days

    “be and are hereby adopted as the ordinance rules and regulations of Iron County; as adopted by the State of Utah.”
  • Certificate of occupancyLimited

    Projects requiring a final certificate of occupancy under Iron County's building inspection process.

    • The final certificate of occupancy is issued after everything is completed and ready to occupy, including framing, plumbing, mechanical, electrical, and grading.
    • The county document requires completed geotechnical compliance for backfill/final grade, insulation certificate, and stucco certificate.
    • City final signoff is required if building in Parowan City, Kanarraville Town, or Paragonah Town.
    • Other inspections may be required depending on building type and occupancy classification.
    “Final Certificate of Occupancy: After everything is completed and ready to occupy; framing, plumbing, mechanical, electrical, grading, etc. Need the completed Geotechnical Compliance for Backfill/Final grade, Insulation Certificate, Stucco Certificate, City Final signoff (if you are building in Parowan City, Kanarraville Town or Paragonah Town)”
  • County-wide zoningPresent (with conditions)

    Zoning and related land-use regulation administered by Iron County for unincorporated county areas.

    • The county planning page identifies zoning, subdivisions, and special land-use permits as county planning responsibilities.
    • Incorporated cities may administer their own local requirements.
    “The Planning Department is responsible for land use and regulations (including zoning, subdivisions, and special land use permits)”
  • Local zoningVaries (with conditions)

    County aggregate of local zoning administration across Iron County, including county-regulated unincorporated areas and incorporated cities.

    • This aggregate conclusion reflects different local authorities: Iron County administers zoning for unincorporated areas, while an incorporated city administers zoning within its city boundaries.
    • The county page directs businesses operating within an incorporated city to apply with that city rather than the county.
    “In order to carry out the purpose of this Ordinance, Cedar City, Utah, is hereby divided into zones as set forth herein.”
    One more reviewed finding on this topic
    • Present (with conditions) — Property zoning in unincorporated Iron County, Utah.
      “WHEREAS, violations of zoning ordinances in the unincorporated areas of Iron County, Utah is a pervasive threat to the health, safety, and general welfare of the inhabitants of Iron County; and”
  • Living in an RVLimited

    Recreational vehicle seasonal use for 17–180 days per year on a legal lot of record in the listed agricultural and residential zoning districts of unincorporated Iron County.

    • The property must have limited seasonal access from a class B county road because of seasonal road closures or road condition.
    • Placement or use for longer than 16 days requires a valid, unexpired, unrevoked building permit.
    • The building-permit application must include an approved final site plan, proof of proper sewage treatment or containment, an approved culinary water source, and cabin-equivalent solid-waste service.
    • The Southwest Utah Public Health Department and Utah Department of Environmental Quality are the county's experts for evaluating sewage treatment or containment.
    • If water hauling is proposed, occupancy is limited to a maximum of 180 days or less per calendar year and a recorded Declaration—Voluntary Deed Restriction for Hauling of Water Restrictive Covenant is required.
    • Residential solid-waste service is required, the same as mountain-cabin properties, plus a one-time trash-can fee.
    • Compensation for placement requires an approved Travel Trailer Park.
    • The recreational vehicle space must comply with all setbacks for its zoning district.
    • After 180 days, the camp must be moved from the property.

    seasonal duration: 17–180 days per calendar year (After 180 days the camp must be moved from the property.) · permit threshold: > 16 days (Longer placement or use requires a valid building permit.)

    “17.36.234 Recreational Vehicle Seasonal Use (17-180 days per year).”
    One more reviewed finding on this topic
    • Limited — Recreational vehicle temporary use for up to 16 days in any 30-day period on a legal lot of record in the listed agricultural and residential zoning districts of unincorporated Iron County.
      “17.36.232 Recreational Vehicle Temporary Use (1-16 days).”
  • Camping on your landLimited

    Temporary camping by recreational vehicle in unincorporated Iron County.

    • Use is limited to 1–16 days in any 30-day period.
    • Self-contained bathroom facilities or a portable chemical toilet are required.
    • No human waste may be deposited or left on the property.
    • Garbage must be contained and removed.
    • Campfires require approved fire rings and occupants must check fire restrictions.
    • Camping must remain at least 100 feet from any stream or open water body.

    camping duration: 1–16 days per 30-day period (After 16 days the camp must be moved from the property.)

    “17.36.232 Recreational Vehicle Temporary Use (1-16 days).”
  • Tiny homesLimited

    Tiny homes on wheels in unincorporated Iron County.

    • The table classifies a tiny home on wheels as up to 500 square feet and up to 8 feet 6 inches wide.
    • Placement is listed only in a travel trailer park.
    • The RV/Travel Trailer category is not for year-round living and refers to RV Ordinance 2021-1.

    maximum area: <= 500 square feet · maximum width: <= 8'—6" feet

    “Tiny home on wheels | Unknown | 8'—6" max. wide ≤ 500 sq. ft. | Travel trailer park”
    One more reviewed finding on this topic
  • Manufactured homesLimited

    Manufactured homes retaining a chassis and using a permanent foundation in unincorporated Iron County.

    • The home must retain its chassis and have a permanent foundation.
    • HUD standards apply.
    • The table lists a minimum width of 12 feet and size greater than 500 square feet.
    • Placement is listed in residential and agriculture zones and R4K.

    minimum width: >= 12 feet · floor area: > 500 square feet

    “Manufactured (Retains chassis, permanent foundation) | HUD | 12' wide min. > 500 sq. ft. | Residential and agriculture zones and R4K”
    One more reviewed finding on this topic
  • Accessory dwellingsLimited

    Accessory dwelling units in unincorporated Iron County zoning districts.

    • The table lists accessory dwelling units as permitted in A-20, RA-20, RR-20, R-5, R-2, R-1, and R-1/2.
    • The table lists accessory dwelling units as prohibited in R4K, C, LI, I, and IA.
    • Additional dimensional, building, health, utility, and approval requirements may apply under other Iron County code provisions.
    “Accessory dwelling unit (ADU) | P | P | P | P | P | P | P | X | X | X | X | X”
  • Who permits septicLocal

    Onsite wastewater and septic-system permitting, plan review, inspections, and records for Iron County within the Southwest Utah Public Health Department district.

    • The district serves Iron County along with Beaver, Garfield, Kane, and Washington Counties.
    “Our department reviews plans, issues permits, conducts inspections, and maintains septic system records within our district.”
  • Septic permitRequired

    Installing, replacing, or modifying an onsite wastewater/septic system in Iron County.

    • A permit and approved design are required before installing, replacing, or modifying a system.
    • A complete application package is required; incomplete submissions may delay the request.
    • Soil and percolation testing must be completed by a Utah-certified onsite professional before design or installation.
    • Iron County permit applications require development clearance for prairie dog habitation on the property from the Utah Division of Wildlife Resources, and the documentation must accompany the application.
    “A permit and approved design are required before installing, replacing, or modifying a system.”
  • Septic inspectionRequired

    Septic systems installed in Iron County before backfilling.

    • Every septic system must receive a final inspection before backfilling.
    • The inspection verifies compliance with submitted plans and septic-system regulations.
    • The applicant must call the Environmental Health Office to schedule the final inspection.
    • Inspectors may ask questions about materials used, and all relevant information should be on-site.
    “EVERY SEPTIC SYSTEM MUST HAVE A FINAL INSPECTION PRIOR TO BACKFILLING TO ASSURE COMPLIANCE WITH SUBMITTED PLANS AND SEPTIC SYSTEM REGULATIONS.”
  • Off-grid sanitationAllowed (with conditions)

    Onsite wastewater/septic sanitation as an alternative to public sewer service in Iron County.

    • An onsite wastewater system is an affirmative alternative to a public sewer connection.
    • A permit and approved design are required before installing, replacing, or modifying the system.
    • Utah-certified onsite-professional soil and percolation testing is required before design or installation.
    • A final inspection is required before backfilling.
    • Iron County applications require prairie-dog-habitation development clearance documentation from the Utah Division of Wildlife Resources.
    “Utah law requires wastewater to be handled through a public sewer connection or an onsite wastewater system (septic system). A permit and approved design are required before installing, replacing, or modifying a system.”
  • Mandatory utility hookupConditional

    Wastewater service for property in Iron County within the Southwest Utah Public Health Department district.

    • Utah law requires wastewater to be handled through either a public sewer connection or an onsite wastewater system.
    • If an onsite wastewater system is used, a permit and approved design are required before installation, replacement, or modification.
    “To help protect public health and the environment, Utah law requires wastewater to be handled through a public sewer connection or an onsite wastewater system (septic system).”
  • Agricultural exemptionAvailable (with conditions)

    Utah Farmland Assessment Act, or Greenbelt Act, treatment for qualifying agricultural property in Iron County.

    • Private farmland must generally be at least five contiguous acres, actively devoted to agriculture with a reasonable expectation of profit, used agriculturally for at least two successive years before applying, and meet average annual per-acre production requirements.
    • The acreage requirement may be waived if at least 80% of income is from products on the land or because of eminent domain.
    • The production requirement may be waived for prior two-year use when failure was through no fault of the owner or lessee.
    • Requirements are waived during bona fide range improvement, rotation, or similar practices.
    • New applications are due by May 1 of the tax year.
    • Supporting documentation may be required to verify two prior years of production.
    • A rollback tax applies for up to five preceding years when land becomes ineligible, including through development or non-use.

    minimum contiguous acreage: >= 5 acres (Some exceptions apply for identical ownership; additional waiver conditions are stated on the county page) · application deadline: May 1 (Of the tax year)

    “The Utah Farmland Assessment Act (FAA, also called the Greenbelt Act) allows qualifying agricultural property to be assessed and taxed based on its productive capability instead of the prevailing market value.”
  • Subdividing landRegulated (with conditions)

    Subdivision and related land-use approvals administered through Iron County's planning and land-use regulatory system.

    • The Planning Department coordinates Planning Commission discussions and meetings.
    • Specific subdivision-plat standards, application requirements, and approval conditions were not fully extracted here.
    • Flood-hazard-area subdivision proposals are subject to additional flood-damage standards, including consistency with minimizing flood damage, protected utilities and facilities, adequate drainage, and base-flood-elevation data for proposals containing at least 50 lots or 5 acres, whichever is less.

    flood-hazard subdivision threshold for base flood elevation data: 50 lots or 5 acres, whichever is less (Applies to subdivision proposals and other proposed development in applicable special flood-hazard areas)

    “The Planning Department is responsible for land use and regulations (including zoning, subdivisions, and special land use permits) and coordinates Planning Commission discussions and meetings.”
  • Driveway accessRequired

    Adding a driveway or culvert when accessing property from a public road or county right-of-way.

    • For a new home, the first access is approved with the building permit.
    • Any additional access requires an encroachment permit.
    • The source addresses public roads and county rights-of-way; it does not establish a requirement for driveways wholly outside those areas.
    “Yes, if you are going to access your property from a public road or county right of way. If you are building a home, the first access is approved with your building permit. Any additional accesses will need an encroachment permit.”
  • Permit feesPublished (with conditions)

    Iron County building permit fees and fee-related renewal and refund rules.

    • No building permit fees will be refunded after 180 days.
    • Plan review fees are non-refundable.
    • If no required inspections are completed within 1 year, the permit holder must renew the permit according to the fee schedule.
    • The cited page refers to a fee schedule but does not reproduce the fee amounts.

    fee schedule availability: published by reference

    “No building permit fees will be refunded after 180 days. Plan review fees are non-refundable. If no required inspections are completed on a building project within 1 year, the permit holder must renew the permit according to the fee schedule.”
  • Permit processPublished (with conditions)

    Iron County building permit inspection requests and payment.

    • Inspection requests require the name on the building permit, permit number, and address.
    • Inspections may be scheduled through the permit portal.
    • Building permit payments may be made by credit card, cash, check, or money order made out to Iron County.
    • American Express requires calling the office to use it and a service charge may apply.
    • Online payment is through the building permit portal.
    “What information is needed to request an inspection? Name on the building permit, permit number, and address. You can also schedule an inspection on the permit portal.”

Utah rules that apply here

  • Well permitRequired

    Construction of water wells, including domestic wells, in Iron County and elsewhere in Utah.

    • A valid water right is required before constructing a shallow water well for beneficial use.
    • A Start Card issued after water-right approval is essentially the permit to construct the well.
    • Water well drillers cannot drill unless permission to drill has been obtained from the State Engineer.
    • Water production wells, including domestic wells, are regulated by the State Engineer under Utah Administrative Rules for Wells R655-4.
    • A licensed well driller or licensed shallow-water-well constructor must perform applicable regulated construction work.
    • Non-production wells deeper than 30 feet are also regulated; additional authorizations may apply depending on the well type.

    non-production well depth threshold: > 30 feet (Non-production wells deeper than 30 feet are regulated by the State Engineer.)

    “A shallow water well owner must have a valid water right to beneficially use groundwater from a shallow water well prior to well construction. [...] A Start Card is issued upon approval of the water right, which is essentially the permit to construct the well.”
  • Campground & park staysLimited

    Temporary RV occupancy in Utah recreational vehicle parks providing temporary living quarters for two or more recreational vehicles.

    • The location must be an RV park as defined by Rule R392-301.
    • The operator must comply with all applicable building, zoning, electrical, health, fire codes and local ordinances.
    • Each RV must satisfy the required data-plate or permanent-label and certification or qualified third-party inspection requirements.
    • Wastewater must comply with the rule, applicable Utah Department of Environmental Quality requirements, local health department regulations, and the local sewer district having jurisdiction.

    minimum number of recreational vehicles: >= 2 vehicles

    “A recreational vehicle or a tiny house may be allowed in a recreational vehicle park only if:”
    One more reviewed finding on this topic
    • Limited — Tiny houses in Utah RV parks; the state source also states that tiny-home permission in a particular area depends on local land-use regulations.
      “A recreational vehicle or a tiny house may be allowed in a recreational vehicle park only if:”
  • county zoning authorityGeneral

    Utah counties may enact land-use controls, including zoning ordinances, for land in unincorporated areas statewide.

    • The authority is subject to Utah Code Section 17-79-101(4) and Section 11-41-103.
    • The statutory grant expressly covers the unincorporated area of a county and a designated mountainous planning district.
    • The quoted provision lists uses, density, open spaces, structures, and buildings among the subjects of permissible land-use controls.
    “Subject to Subsection (4) and Section 11-41-103, to accomplish the purposes of this chapter, a county may enact all ordinances, resolutions, and rules and may enter into other forms of land use controls and development agreements that the county considers necessary or appropriate for the use and development of land within the unincorporated area of the county or a designated mountainous planning district”
  • county building authorityGeneral

    Utah counties may adopt and enforce building regulations and require building permits for construction in unincorporated areas statewide.

    • The general county building-regulation authority applies outside the limits of cities and towns.
    • Local regulations may not conflict with general laws.
    • Under Utah Code Section 17-79-901, erecting, constructing, reconstructing, altering, or changing the use of a building or other structure within a county requires approval of a building permit.
    • A county may not issue a building permit unless the plans fully conform to regulations then in effect.
    • The county permit authority is subject to the State Construction and Fire Codes Act and other statutory limitations.
    “A county may make and enforce within the limits of the county, outside the limits of cities and towns, all local, police, building, and sanitary regulations that are not in conflict with general laws.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Minimum dwelling size — Minimum dwelling size for residential dwellings subject to Iron County zoning regulations.
  • Building in a floodplain — Development in floodplain or flood-hazard areas under Iron County rules.
  • Short-term rentals — Short-term rentals in unincorporated Iron County.

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Water rights & wells in Iron County

Whether a new home can legally get its own water here — the sub-state groundwater regime, from Utah’s water agency.

Closed to new supply

New water supply here generally requires a permit, an offset, or buying an existing right — a household well is not automatic.

Household wellPermit required — restricted

Utah has NO exempt domestic well — you must own a water right to drill any well, including a household well. In an open area you file a new appropriation, but because much of Utah is closed to new appropriation a newcomer typically must PURCHASE an existing water right and file a change application to move it to the new well.

Limit: ~0.45 acre-ft/yr indoor domestic (typical allocation); no statutory exempt-well quantity

Utah Division of Water Rights — FAQ ↗
  • Iron County over-drafted valleys (Cedar, Parowan, Beryl-Enterprise)majority of county

    Adopted groundwater management plans mandate phased reductions of existing withdrawals toward safe yield; closed to new appropriations — new use requires buying and changing existing rights.

    Utah Division of Water Rights — Groundwater Management Plans ↗

Prior-appropriation state (first in time, first in right). Groundwater rules change and basin boundaries follow the aquifer, not the county line — confirm current well and appropriation rules with the Utah state water agency before you buy or drill.Groundwater governance as of Jul 2026, cited to each administering agency.

Living off-grid in Iron County, Utah

Is Iron County a good place to live off-grid or homestead?

Iron County scores 52/100 on the Bolthole Index, a solid county profile. Its strengths: deep seclusion — about 3,010 people within 15 miles and manageable long-term carry cost. Watch-outs: weak self-sufficiency basics: only 14.5″ of rain a year, in severe drought 22% of years and more administrative friction around building and land use.

Do you need a building permit in Iron County, Utah?

Iron County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Southwest Utah Public Health Department (Environmental Health). Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

Can you live in an RV or tiny home on your land in Iron County?

Living in an RV on your own land in Iron County is limited to specific cases: Recreational vehicle seasonal use for 17–180 days per year on a legal lot of record in the listed agricultural and residential zoning districts of unincorporated Iron County. The property must have limited seasonal access from a class B county road because of seasonal road closures or road condition. Placement or use for longer than 16 days requires a valid, unexpired, unrevoked building permit. A tiny home is limited to specific cases. Confirm with the county before relying on it.

How much does land cost in Iron County, Utah?

Land in Iron County runs about $3,525 per acre, based on the latest county data.

What is the water situation in Iron County?

Iron County gets about 14.5" of rain a year, with severe drought in roughly 22% of years. On water rights, Iron County lies in the Iron County over-drafted valleys (Cedar, Parowan, Beryl-Enterprise) — Adopted groundwater management plans mandate phased reductions of existing withdrawals toward safe yield; closed to new appropriations — new use requires buying and changing existing rights..

How remote is Iron County?

A typical private-land location has about 3,010 people within 15 miles and 192,197 within 100 miles. These radius catchments are the published fallback where road routing is unavailable.

Off-grid gear

Going off-grid in Iron County means bringing your own water and power. The kit we’d start with:

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How Iron compares in Utah

Compare side-by-side →See all 29 Utah counties ranked →